Base | Representation |
---|---|
bin | 1111011111110… |
… | …11010100010010 |
3 | 100001121220021221 |
4 | 13233323110102 |
5 | 231240113432 |
6 | 20522235254 |
7 | 3136006054 |
oct | 757732422 |
9 | 301556257 |
10 | 130004242 |
11 | 67425125 |
12 | 37655b2a |
13 | 20c1a6b4 |
14 | 133a18d4 |
15 | b62eb97 |
hex | 7bfb512 |
130004242 has 4 divisors (see below), whose sum is σ = 195006366. Its totient is φ = 65002120.
The previous prime is 130004227. The next prime is 130004243. The reversal of 130004242 is 242400031.
130004242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 75672601 + 54331641 = 8699^2 + 7371^2 .
It is a super-2 number, since 2×1300042422 = 33802205875989128, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (130004243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32501059 + ... + 32501062.
Almost surely, 2130004242 is an apocalyptic number.
130004242 is a deficient number, since it is larger than the sum of its proper divisors (65002124).
130004242 is an equidigital number, since it uses as much as digits as its factorization.
130004242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65002123.
The product of its (nonzero) digits is 192, while the sum is 16.
The square root of 130004242 is about 11401.9402734798. The cubic root of 130004242 is about 506.5852118786.
Adding to 130004242 its reverse (242400031), we get a palindrome (372404273).
The spelling of 130004242 in words is "one hundred thirty million, four thousand, two hundred forty-two".
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